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J. I. GURIDI.

HARROW AND LOCUST KILLING MACHINE.

APPLICATION FILED AUG.3. 1918.

1 06,059. Patented June 10, 1919.

324mm n z um n/zlla'an Gurfii HARROW AND LOCUST-KILLING IVIACHINE.

Specification of Letters Patent.

Patented J nine 10, 1919.

Application filed August 3, 1918. Serial No. 248,170.

To'all whom it may concern:

Be it known that I, JUAN JULIAN GURIDI, citizen of Uruguay, residing at Mansavillagra, Florida, lruguay, have invented cer tain new and useful Improvements in Harrows and Locust-Killing Machines, of which the following is a specification.

The present invention relates to a new harrow and locust killing machine which by its novel construction, easy working, low cost and its use, either as a harrow or as a locust killing machine, as well as by the results which it gives in both cases,-as will be hereinafter described,makes it a valu able acquisition for persons engaged in agriculture. I shall herein describe the invention primarily as a locust killing apparatus, in which embodiment it is exceedingly simple in operation. I

The capacity of the machine according to the type used is of 4: to 26 hectares per day. The various types differ only in size and in the number of cutting and crushing disks, without altering in any way the constructive form, etc.

The present invention presents a great advantage over fire locust killing apparatus if the fact is taken into consideration, that the latter only have a maximum radius of action of about 8 inches, and their employment is dangerous because they are always subject to explosion and alsoexpen'sive on account of the continuous use of'fuel, and, furthermore, it is necessary, in order to avoid accidents, that they should he run by adults to whom higher wages have to be paid; whereas, my machine, taking the smallest size, covers a killing area of about 72 inches, does not requirethe expense of fuel and a child can handle it.

It may be argued, that the cost of my machine is higher than that of the fire killing apparatus, but it must be borne in mind, that my machine is a locust killing machine and a harrow at the same time; that as soon as the work of killing is done it can be used as a harrow with great advantage in farming work, and even when a fire locust killing machine is of lower cost initially it will be more expensive in the end, on account of the consumption of fuel, which in only ten days of continuous work will exceed the difference of the initial cost between the two machines.

Compared with the so-called incinerating machines which are intended to exterminate the locust and afterward to 'be used in an industrial manner, my machine certainly presents advantages because, with the other machine it is necessary to allow the locust .to live until it is able to fly, so that the machine may do its work. Furthermore, the incinerating machine is of a prohibitory price for the farmer, of moderate means, who really is the one who sufiers most from locusts. My machine is also more advantageous for while the incinerating machine clears a hectare mine clears three or four hectares.

In regard to the use of the invention as a harrow, it gives excellent results and is superior to all types of harrows heretofore known, because it can be used at any time and specially in dry weather, whereas, the the others cannot work at all times. After the harrow goes over the soil, the plow will make a better furrow and break the ground very fine. Furthermore, harrows provided with single axle are inferior to the present invention which is provided with four axles, because when working on the ground already broken the surface of which is uneven, as all the disks are on the same axle, when a disk passes over an elevation or rock, it will raise all. the other disks so that the harrow loses all efi'ect uponthe ground adjacent to the elevation or rock, whereas, with my harrow, even if the disks of one axle lose their action on account of an obstruction, the other disks which are on the other axles will. complete the work.

The change of my machine from locust killer to harrow and vice-versa is very simple. It is sufficient to withdraw or put on the tires of the crushing disks which are attached thereto by means of bolts in order to make the necessary change.

In order to clearly explain the method of construction and manner of using my machine, the same will now be described with reference to the accompanying drawings, in which,

Figure 1 is a plan view of the machine;

Fig. 2 is a side View of same;

Fig. 3 is a view of one of the crushing disks;

Fig. 4 is a section of said disk showing one method of setting and Fig. 5 is an end view of the brush employed to sweep the locusts toward the machine.

In Fig. 1 A are the crushing disks. B are the disks to fill the clear spaces which together with the disks A after the removal of the crushing tires make the narrow. The disks B are also used as a barrierto carry the locusts under the crushers. C is an adjustable brush which is used for sweeping the locusts toward the -c'rushers and also increases the radius of action of the machine. D are the axles and bearings of the crushing disks. E are the axles and bearings of the plain disks. F are the parts which form the frame of the machine. G are the reinfore i ng braces of the frame. H is the shaft or pole for drawing. 1 is a draft equalizer bar. J is an arm of the brush C. K are the removable crushing tires of the disks A. L is the cable for adjusting the positions of the brush G. M is the side brush attached to pole H which acts as a barrier and N are supports located at the upper part of the apparatus,

In Figs. 2 and 3, A shows the disks and K the bipart crushing tires which are attached to the disks by means of bolts.

. In Fig. 4, P are the dowel pins to connect the abutting sectional faces of the bipart crushing tires. H

In Fig. 5, J is a section of the arm of the brush support 0 and C is a section of the brush. I p w In orderto run my machine all that is necessary is to harness the draft animal to the pole When workin as locust killer the brush 0 will be given by means of the opening and closing cable the angle that should be necessary to cover more or less ground and carry the locusts under the ma? chine. l/Vhen working as a harrow the brush 7 should be raised because its use is not necessary. I, p

The invention might be rendered more GlllClGIlt for ground of irregular surface by placing the axles of the plain and crushing disks on resilient bearings, so that these might go up or down adapting. themselves to all the roughness of the groundwhere the locusts are to be destroyed; but with a View to cheapening the cost .of the machine as much as possible, I have thought more suitable to adopt the type of fixed axle, but the use of this preferred embodiment. should not be taken to preclude my right to the alternative arrangement The fixity of the axles is not, however, an obstacle for the greater output of the machine, because the same result can be obtained, as it is very easy to drive a swarm of locusts when they are only in condition to jump, to flat ground where the machine could work with complete fa- In regard to the brush C this may be made in a revolving cylindrical form for which it will be necessary to put thecorresponding gear to actuate the same but up to now I have thought it more suitable, in order to cheapen the cost of the machine, to make it in a fixed form, without how-ever renouncing my rights to use the rotary cylindrical brush, if it should be deemed suitable.

What I claim is:

1-. A combined harrow and locust-killing machine comprising-a supporting frame, a series ofa-xles thereon, and-a number of disks rotatable on said axles, said disks beingxah ternately provided with detachable tires, a single tire being provided for one disk only,

whereby the machine may beus'ed either as a 7 harrow or as a locust-killingmachine,

2. Apparatus of the kind described, com; prising a supporting frame, a series of axles there'ona number of disks rotatable on said axles, the disks on one axle being simple cuttingdisks while the disks on the other axle are crushing disks, a brush and controlling means forsaidibrush.

3 Apparatus of the kind described, com-' prising a supporting frame, a series of axles thereon, a numberof alternately placed cutting disks andcrushing disks-rotatable on said axles-,said crushing disks comprising two cooperative members adapted to be bolted to the disks, a brush, controlling Copies of this patent may be obtained for fiv'e' cents each, by addressing the Commissioner of Patents Washington, I). '0. 

